Before her career began to take off, Leah was studying to become a paramedic.[dead link][1] She started out modeling for Ford Motor Company and made appearances on shows such as The View, Last Call with Carson Daly, and the Nick and Jessica Variety Show. By the age of 19, her photo was seen on a boxing website by the UFC, and she was hired as an Octagon Girl.

Leah has appeared on and hosted numerous TV shows such as Spike's Sexiest NYC Bartenders, Spike TV's Women of Action, Casino Cinema, Inside the UFC, and The Ultimate Fighter.

Leah has also been featured inside and on the covers of many magazines, some of which include Maxim, Men's Fitness, 944, Playboy,[2]Steppin' Out, Muscle & Fitness, AXL, Vegas Magazine, and Stuff.

Leah took a break from being an Octagon Girl but continued presenting UFC All Access on Spike, which airs a week before a UFC pay-per-view event. She returned to the Octagon at UFC 111 on March 27, 2010.

Leah also makes an appearance in the video game UFC 2009 Undisputed, telling the tales of classic fights.

Jay Glazer, a senior writer for FoxSports.com, partnered with the UFC's Randy Couture to form MMAathletics based in Las Vegas, Nevada at Xtreme Couture Training Center. Rachelle Leah serves as host for the weekly episodes, alongside Jay Glazer.[3]